Prewelt shoe and method of manufacturing the same



Get. 27, 1942. ENGEL, 2,299,808

PREWELT snore: AND METHOD OF MANUFACTURING THE SAME Filed Dec. 23/ 1940 V FigZ v /6 "222m. Fig.5

' WV/VTUA (a y fi m 54/4 Patented Oct. 27, 1942 UNIT-ED! STA PREWELTSHOE AND M HOD or MANUL FACTURING THE SAME 7 Karl Engel, Swampscott, Mass., assignor to l United Shoe Machinery Corporation, Flemington, N. J a corporation of New Jersey Application December 23, 1940, Serial No. 371,294 I I 3 Claims. (01. 12-442) 'This invention relates to prewelt shoes and their manufacture and isherein illustrated in its application to themanufacture of that type of prewelt shoein which an insole issecurely attached to the welt in order to provide a shoe which is repairable and which will withstand the widthwise strain produced by the spreading action of the foot in wear.

It is an object of the present, invention to provide a prewelt shoe of the type above referred to which is relatively inexpensive to manufacture and is well suited to the cement sole attaching;

process.

It is a further object of the invention to provide a prewelt shoe of the above type in which there is no bottom cavity requiring filling since the inner surface of the outsole lies in the plane of the insole. 7

With the above object in view, the invention, in one aspect thereof, resides in a prewelt shoe characterized by an insole having a relatively thick central portion which terminates in a wide lip and a narrow lip the edge face of which serves as an abutment against which the adjacent edge faces of the welt and upper are lasted, and a welt attaching member or strip secured to the narrow lip and arranged between the welt and a sole.

The outsole is positioned in contact with the exposed face of said strip and the central portion of the insole, and is either cement-attached to said strip or lockstitched to the welt in accordance with the usual practice in prewelt shoe manufacture.

In another aspect thereof, the invention resides in a prewelt shoe characterized by an insole having a feather edge portion anda relatively thick central portion to which a weltattaching strip is secured by fastenings herein illustrated as stitches which do not extend through to the foot-receiving surface of the insole.

In a further aspect thereof, the invention comprises a method of making prewelt shoes which consists in providing an insole having a relatively, thick central portion which terminates in a wide lip and a narrow lip, stitching a welt-attaching member to the narrow lip, lasting the welted margin of the upper over the projecting portion of the wide lip and against the edge face of the narrow lip, stitching the welt-attaching member to the welt, and cement-attaching an outsole to said welt-attaching member.

The invention will now be described with reference to the accompanying drawing illustrating embodying the features of this invention, "in which drawing: 1

Fig. l is a plan view, partly broken away, illustrating the outsole-attaching surface of an insole; Fig. 2 is a section on the line II-II of Fig. 1;

Fig. 3 is a sectional view similar to Fig. 2 showing a portion of a completed shoe;

Fig. 4 is a section similar to Figs. 2 and 3 showing an alternative construction; and

Fig. 5 is an enlarged section similar to Fig. 2 lustrating the insole shown in Fig. 4. p

Referring to Figs. 1 and 2, an insole it having a relatively thick central portion is provided with a wide lip [2 which terminates in a "thin insole margin or feather edge portion, and a narrow lip 14 whichlies parallel to and in contact with the inner margin of said feather edge portion and has a fabric welt-attaching strip It secured to it by stitches l8 extending perpendicularly to the width of said lip through the full thickness thereof.

In the alternative construction illustrated in Fig. i, an insole is provided witha stitch-receiving lip 22. which is turned inwardly at its root and has a fabric welt-attaching strip 24 secured by a seam 26 to that surface of the lip which, before turning the lip, was adjacent to the upperreceiving surface of the feather edge portion of the insole.

In the manufacture of prewelt shoes, in accordance with the present invention, a prewelt upper, such, for example, as the upper 28 illustrated in Fig. 3, is lasted over the feather edge portion of the insole, the inner edge face of the welt being brought into adjacent relation to the stitch-receiving, lip M. Fig. 3, it will be seen that the inner edge face of the welt lies adjacent to the edge face of the stitch-receiving lip l4 while in the construction illustrated in Fig. 4, the inner edge face of the two preferred forms of prewelt shoe construction welt lies adjacent to the root of the lip since the lip is turned inwardly toward the central portion of the insole. While the upper is held in lasted position by the wipers of a lasting machine, one of which is illustrated at 30 in Fig. 3, the weltattaching strip is cement-attached to the welt. Such cement-attachment may serve only as a preliminary bond to hold the upper lasted until the welt is permanently attached to said strip, for example, by a sewn seam 32, or alternatively, the welt-attaching strip may be permanently and finally secured to the welt by cement, in which case the seam 32 would be omitted. An outsole 34 is cement-attached to the strip It by means of In the construction illustrated in a cement sole attaching machine such, for example, as that illustrated in United States Letters Patent No. 2,047,185, granted July 14, 1936, on an application of Milton H. Ballard et a1. Alternatively, the outsole may be lockstitched to the welt in accordance with the usual practice in prewelt shoe manufacture.

While the illustrated shoe is provided with an insole herein illustrated as a unitary structure, it may be a laminated structure, such as the insole and filler assembly illustrated in Figs. 33 and 34 of United States Letters Patent No. 2,042,518, granted June 2, 1936, on my application, in which case the welt-attaching strip would be stitched to the filler before the filler is attached to the insole.

Having thus described my invention what I claim as new and desire to secure by Letters Patent of the United States is:

l. A prewelt shoe characterized by an insole comprising a relatively thick central portion which terminates in a Wide lip and a narrow lip the edge face of which serves as an abutment against which the adjacent edge faces of the welt and upper are lasted, and a welt-attaching strip stitched to the narrow lip and secured to the soleattaching face of the welt.

2. A prewelt shoe characterized by an insole comprising a relatively thick central portion which terminates in a wide lip one surface of which is exposed in the interior of the shoe bottom and a narrow lip the edge face of which afiords an abutment against which the welted margin of the upper is lasted, and a welt-attaching strip secured by one row of stitches to the narrow lip and by another row of stitches to the Welt.

3. That method of making prewelt shoes which consists in providing an insole having a relatively thick central portion which terminates in a wide lip and a narrow lip, stitching a welt-attaching member to the narrow lip, lasting the welted margin of the upper over the projecting portion of the wide lip and against the edge face of the narrow lip, stitching the welt-attaching member to the welt, and cement-attaching an outsole to said welt-attaching member.

KARL ENGEL. 

